Powder-distributer



F. J. KAUFMANN.

POWDER DISTRIBUTER.

APPLICATION FILED OCT. 9. 1918.

1,333,079. Patented Mar. 9,1920. V

2 SHEETS-SHEET 1.

Patnted Mar. 9,1920.

2 SHEETSSHEET 2.

In verzior UNITED STATES PATENT OFFICE.

FRANK J. KAUFMANN', 0F .TRIBES HILL, NEW YORK, ASSIGNOR TO FOV INESBROTHERS & 00., OF LONDON, ENGLAND, A COPARTNERSHIP CONSISTING 0FWILLIAM GARDI- N ER R IGDEN, HENRY URWICK, W. FOWNES RIGDEN, E. FOWN ESRIGDEN, S. FOWNES BIGDEN, AND LESLIE ALAN SPALL.

POWDER-DISTRIBUTER.

Application filed October 9, 1918.

To all whom it may concern Be it known that I, FRANK J. KAUI-MAXN, acitizen of the United States, residing at Tribes Hill, county ofMontgomery, and State of New York, have invented certain new and usefulImprovements in Powder- Distributers, of which the following is aspecification.

Reference may be had to the accompanying drawings, and the referencecharacters marked thereon, which form a part of this specification.Similar characters refer to similar parts in the several figurestherein.

The invention relates to powder distributers whereby the powder isejected through a nozzle by the use of ablast of air or other fluid.

The preferred form of device shown in the drawings adapted fordistributing powder from a container over the surface of a web of paper,textile or knitted fabric or similar sheet material.

The principal objects of the invention are to secure a. substantiallyuniform deposit of the powder upon all parts of the surface to which itis applied; and to prevent clogging of the Sifter-plate through whichthe powder is delivered to the blast of fluid whereby it is blown fromthe nozzle of the distributer.

Other obj cts will appear in connection with the following description.

Figure l of the drawings is a view in side elevation showing my improvedpowder-distributer in its application to a machine for coating thesurface of a web of paper, cloth or similar sheet material withcomminuted or powdered material.

Fig. 2 is a horizontal cross-section of the powder-distributer taken onthe broken line 2-2, Fig. 3, viewed from above.

Fig; 3 is av central vertical section of the same taken on the brokenline 33 in Fig. 2.

Fig. i is a top plan view of the sifterplate detached.

Fig. 5 is a top view of the brush for sweeping the powder across theupper side of the Sifter-plate.

Fig. 6 is a cross-section of the lower portion of the device taken onthe broken line 66 in Fig. 2.

Referring to the drawings wherein the in ention is shown in preferredform, 1 is Specification of Letters Patent.

Patented Mar. 9, 1920.

serial 'No. 257,498.

a powder-container, preferably made of downwardly tapered form andmounted upon a base, 2, containing an air-chamber, 3.

The container is preferably removably mounted upon the base by .means ofscrews, 4, connecting together flanges, 5 on the container, and 6 on thebase.

A perforated sifter-plate, 7, is removably mounted upon a seat, 8, onthe base and forms a bottom for the container, 1.

. at air-sup iily pipe, 9, in fixed relation to the base, 2,communicates at one side of the base with the chamber, 3, extendingthere from downwardly and transversely beneath the chamber, 3, to theaxial line of the base of the container, and then downwardly along saidaxial line forming a bearing-spindle, 10, rotatively mounted in thelower arm, 11, of a. bracket, 12, whereby the distributer is mountedupon a machine in connection with which it is to be used.

This supply-pipe, 9, contains an air-passageway which extends downthrough the bearing-spindle, 10. i

The bearing-spindle, 10, is connected with an air-supply pipe, 13, bymeans of a coupling. 11, which permits the bearing-spindle, 10, to berotatively moved relatively to the supply-pipe. 13.

Air or other desired fluid can be supplied to the air-supply pipe, 13,under such pressure as may be desired, and the same will be transmittedthrough the pipe, 9, to the chamber. 3.

A delivery nozzle, 15, projects from the chamber, 3, on the sideopposite that with which the air-supply pipe, 9, connects.

In the preferred form of my invention the sitter-plate, 7, is held insubstantially fixed relation to the base, 2, with respect to rotativemovement by means of a pin, 16, on the base which engages a notch, 17,in the edge of the plate. I

A vertical spindle, 18, is arranged axially within the container, 1,having at its lower end a bearing in the sitter-plate, 7, the upper endof the spindle projecting upwardly through the-top of the container, andbeing fixedly secured by means of a screw, 19, in the upper arm. 20. ofthe bracket, 12-.

A brush comprising a hub, 21, and a plurality of blades or vanes, 22, isslidably mounted upon the lower end of the spindle,

18, just above the Sifter-plate, 7 said brush having a pin-and-slotengagement at 23, with the spindle, whereby a limited vertical movementof the brush is permitted while rotative movement of the brush withrespect to the spindle, 18, is prevented."

A coil-spring, 24, inclosing the spindle, 18, tends to yieldingly forcethe brush down upon the upper surface of the Sifter-plate, 7.

A relative rotative movement between the brush and Sifter-plate, 7, maybe produced in any known manner, and will serve to sweep the deposit ofpowder across the upper surface of the Sifter-plate, preventing thepowder from clogging the space above the sifter-plate, and causing thepowder to be delivered through the Sifter-plate with substantialuniformity as to the quantity and the form as delivered to the chamber,3.

In the preferred form shown, the brush isprevented from rotation by apin-and-slot connection, 23, with the spindle, 18, while theSifter-plate, 7, is rotatively moved in connection withthe base, 2, andthe container, 1, as well as the air-supply pipe, 9, and the nozzle, 15;and such rotative move- K ment may be imparted in any known manner.

As a means for imparting such rotative movement, I have shown a link,25, pivotally connected with-an ear, 26, projecting from the side of thecontainer, 1, which link may be connected with any suitable moving partof the machine in connection with which the distributer is employed,whereby the container and parts connected to be rotatively movedtherewith will be reciprocatorily move through a partial rotation.causing the nozzle, 15, to reciprocate through an arc of such length asmay be desired.

As illustrating one use of my improved powder-distributer, I have shownin the drawings the distributer in its relation to a machine forapplying comminuted or powdered material to the surfaceof a web of paer, fabric or similar sheet material, the we 27 being fed from a roll,29, to a roll, 30, with a stretch of the web between said rolls exposedto the action of the powderdistributer. l

The web may be treated in any known manner to cause the particles ofpowder or comminuted material to adhere thereto.

The oscillating movement of the nozzle, 15, of my powder-distributercauses the powder to be distributed throughout the width of the web.

' The'operation of my powder-distributer is as follows; I

A supply of. powder having been introduced into the container though thecapcovered top-opening, 33. as the container and parts connected torotatively move therewith are rotatively reciprocated, the owder in thelower end of the container 1s brushed k v over the upper surface of thesifter-plate, 7-, by means of the vanes, 22, causing the powder todescend in small quantities though the apertures in the .sifter-plateinto the chamber, 3, while at the same time a blast of air or otherfluid under-pressure is forced into said chamber through the air-supplypipe, 9, causing the powder to be forcibly blown out from the chamber,3, through the nozzle, 15. a

The powder thus forcibly delivered from the nozzle, 15, is distributedupon the surface of the web, 27.

To more uniformly distribute the powder transverselyof the web and toprevent too great a deposit of powder upon the middle portion of the.web, I have provided for for an additional supply of powder to the edgeportions of the web.

I have shown in the drawings a preferred form of air chamber, 3, havingside walls WlllCll converge downwardly in cross-section to a channel orgutter, 28, substantially in line with the blast ofair from the pipe, 9,

to the nozzle, 15.

This form of chamber insures the immedlate delivery of the powder siftedthrough the plate, 7, into the path of the blast of air, thus preventinany accumulation of powder in the cham er.

What I claim as new and desire to secure by Letters Patent is:

1. In a powder-distributer andin combination, a powder-container; aSifter-plate extending across the lower end of the powder-container; anair-chamber beneath said sifter-plate; means for supplying fluidunder-pressure to said air-chamber; a nozzle extending from saidair-chamber; .a brush adjacent to the upper side of said Sifter plate;and means for causing a relati e ro-" tative movement between 'said'brush and said Sifter-plate.

2. In a powder-distributer and in combination, a powder-container havinga chambered base; a removable sifter-plate extending across the lowerend of said container above said chamber, the upper side of saidSifter-plate being substantially plane and being provided with numeroussmall perforate openings; means for supplying fluid under-pressure tosaid chamber; a nozzle extending from said chamber; a brush adjacent tothe upper side of said sifter plate; and means for causing relativerota- I live movement between said brush and said sifter-plate.

3. In a powder-distributor and in combination, a powder-container havinga chambered base; a removable sifter-plate extending acrossthe lower endof said container above said chamber; means for supplying fluidunder-pressure to said chamber; a nozzle extending from said chamber; abrush adjacent to the upper side of said sifterplate; a spring foryieldingly holding said rush against the sitter-plate; and means forcausing relative rotative movement between said brush and saidSifter-plate.

4; In a powder-distributer and 1n combination, a powder-container havinga cham- -bered base, said container and base being the; upper end of thecontainer; an airsupply pipe connecting with saidchamber rotativelymounted upon a vertical axis extending longitudinally of the container;an

air-supply pipe and a nozzle both mounted upon. said base to rotatetherewithpa'sifterplate extending across the lower end of said containerabove said chamber rotatory with said base and container; a brushadjacent to the upper side of said Sifter-plate; and means for impartingrotative movement to said base andcontainer.

5. In a powder-distributer and in combination, a powder-container havinga chambered base; means for rotatively supporting 1n fixed relation tosaid base, and having a portion extending downwardly therefrom along theaxial line of the container; a support on which said downward extensionof the air-supply pipe has arotatory bearing;

1 a sifter-plate extending across the lower end of the container abovesaid chamber; a brush adjacent to the upper side of said Sifter-plate;and means whereby rotative movement of said container and base causes arelative rotative movement between said brush and said sifter-plate. 7

6. In a powder-distributer and in combination, 'a rotatively mountedpowder-container havin a chambered base; means for supplying uidunder-pressure to said chamber; a nozzle extending from said chamberrotatory with said container and base; a Sifter-plate extending acrossthe lower end'of said container above said chamber; a brush adjacenttothe upper side of 1 said Sifter-plate; means whereby rotative movementof said container and base causes a rel-atlve rotatlve movement betweensaid sifter-plate and said brush; a reciprocatory T container-rotatingmember and a slotted connection between said member and said containerproviding lost-motion at the beginning of the rotative movement of thecontainer in each direction.

7. Ina powder-distributer and in combination, a powder-container havinga chambered" base; a removable Sifter-plate extending across the lowerend of said container above said chamber in fixed relation to said base;a. support; a spindle in fixed relation to said support extendingdownwardly through the upper end of the container forming a rotatorybearing therefor. and

tive movement to said container.

8. .In a powder-distributor and in combination, a powder-containerhaving a chambered base, the walls of said chamber converging downwardlyin cross-section to a channel or tter extending longitudinally of thedistri uter; means for feeding powder from said container in limitedquantities to said chamber; a fluid supply-pipe leading to said chamberat one end of said channel or gutter; and a nozzle leadin from saidchamber at the other end of sai channel or gutter. In testimony whereofI have hereunto set my hand this 23rd day of September 1918.

FRANK J. KAUFMAlIN.

